---
title: "External order ID"
canonical: "https://ingrid-support.refined.site/space/KB/14614674/External%20order%20ID"
format: markdown
---
## It is highly recommended to pass an external order identifier in your session create/update/complete requests. Passing it in one of those requests will store the external ID along with the other session data.

The benefits of using an external ID are:

- being able to search by your external order ID in Ingrid Merchant Platform transport orders,
- when booking with Ingrid, your external order ID will be propagated to the booking system,
- being able to register and load the tracking widget using the external order ID provided by the merchant.

![image-20240725-074407.png](media://a1d727ac-89da-4f8b-a16b-7963e228a6b6)


- <u>[Here](https://developer.ingrid.com/siw/integration/#using-external-order-identifier)</u> we publish a full developers documentation with instructions on how External Order ID should be sent to Ingrid.


Please note that External Order ID can be also added manually when <u>[Transport Order](https://ingrid-ab.atlassian.net/wiki/spaces/KB/pages/11534368)</u> is created via Ingrid Merchant Platform. 

Delivery Checkout > Test Checkout Widget 

![image-20240725-074508.png](media://7a83a7e8-209f-4ec9-8e62-b47dc0a6dfa3)